CN114369493A - Preparation method of biodegradable water-resistant shield tail sealing grease - Google Patents
Preparation method of biodegradable water-resistant shield tail sealing grease Download PDFInfo
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- CN114369493A CN114369493A CN202011101714.3A CN202011101714A CN114369493A CN 114369493 A CN114369493 A CN 114369493A CN 202011101714 A CN202011101714 A CN 202011101714A CN 114369493 A CN114369493 A CN 114369493A
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- 239000004519 grease Substances 0.000 title claims abstract description 109
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000000654 additive Substances 0.000 claims abstract description 112
- 239000007787 solid Substances 0.000 claims abstract description 96
- 230000000996 additive effect Effects 0.000 claims abstract description 61
- 238000003756 stirring Methods 0.000 claims abstract description 60
- 239000000284 extract Substances 0.000 claims abstract description 59
- 239000002245 particle Substances 0.000 claims abstract description 58
- 230000001050 lubricating effect Effects 0.000 claims abstract description 37
- 241000220259 Raphanus Species 0.000 claims abstract description 34
- 235000006140 Raphanus sativus var sativus Nutrition 0.000 claims abstract description 34
- 241000157282 Aesculus Species 0.000 claims abstract description 24
- 235000010181 horse chestnut Nutrition 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 16
- 239000003381 stabilizer Substances 0.000 claims abstract description 16
- 239000013556 antirust agent Substances 0.000 claims abstract description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 62
- 239000002131 composite material Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 12
- 239000000706 filtrate Substances 0.000 claims description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 210000000582 semen Anatomy 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 241000196324 Embryophyta Species 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229920002396 Polyurea Polymers 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229910052895 riebeckite Inorganic materials 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 238000002137 ultrasound extraction Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 abstract description 4
- URXZXNYJPAJJOQ-UHFFFAOYSA-N Erucic acid Natural products CCCCCCC=CCCCCCCCCCCCC(O)=O URXZXNYJPAJJOQ-UHFFFAOYSA-N 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 abstract description 2
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 abstract description 2
- 235000020661 alpha-linolenic acid Nutrition 0.000 abstract description 2
- 239000002199 base oil Substances 0.000 abstract description 2
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 abstract description 2
- 229960004488 linolenic acid Drugs 0.000 abstract description 2
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 abstract description 2
- 230000008719 thickening Effects 0.000 abstract description 2
- 235000019197 fats Nutrition 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 5
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 4
- 244000178231 Rosmarinus officinalis Species 0.000 description 4
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 4
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 239000012990 dithiocarbamate Substances 0.000 description 4
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 4
- 150000007524 organic acids Chemical class 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- OLLFKUHHDPMQFR-UHFFFAOYSA-N dihydroxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](O)(O)C1=CC=CC=C1 OLLFKUHHDPMQFR-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 235000019580 granularity Nutrition 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/06—Mixtures of thickeners and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M121/00—Lubricating compositions characterised by the thickener being a compound of unknown or incompletely defined constitution
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/045—Siloxanes with specific structure containing silicon-to-hydroxyl bonds
Abstract
The invention relates to the technical field of sealing grease, in particular to a preparation method of biodegradable water-resistant shield tail sealing grease. The preparation method comprises the steps of preparing a radish seed extract, preparing a buckeye extract, adding the radish seed extract, the buckeye extract, an antioxidant, an antirust agent, an oiliness agent, a structure stabilizer and a multi-effect additive into basic fat, uniformly stirring, and sequentially adding the solid additive in batches according to the particle size. According to the lubricating grease, the radish seeds contain erucic acid, linoleic acid, linolenic acid and erucic acid glyceride in the amount after being extracted by the extraction process, so that the degradation effect of base oil can be effectively improved, the addition of the buckeye seed extract can play a role in thickening and improve the waterproof effect of the lubricating grease, and solid additives with different particle size distributions are added into the lubricating grease, so that the sealing property and the water resistance of the lubricating grease are enhanced.
Description
Technical Field
The invention relates to the technical field of sealing grease, in particular to a preparation method of biodegradable water-resistant shield tail sealing grease.
Background
The shield tunneling machine is a preferred excavating tool for excavating urban subway tunnels, has the advantages of no influence of ground buildings and geographic environments, is particularly wide in application range, and can completely meet the strict requirements of urban tunnel construction. The shield tail sealing system is a sealing device designed for preventing soil layers, sand layers, water layers and slurry around the shield tail from entering the shield machine from gaps between the shield tail and the duct piece. The shield tail sealing grease is injected into a sealing cavity between three rows of stainless steel wire brushes from the shield tail through a grease pump in real time and keeps a dynamic full state so as to meet the requirements of sealing and protecting shield construction. Generally, shield tail grease consumption of a shield machine (diameter is 6.4 m) for urban subways is about 20-40 kg/m, special stratum consumption is 80-100 kg/m, and shield tail grease consumption per kilometer is 20-40 tons on average.
The blocking capability and biodegradability of the shield tail sealing grease to water and other liquids are important measurement indexes of the performance of the shield tail sealing grease, and technical personnel make a great deal of breakthrough researches aiming at the waterproofness and biodegradability of the shield tail sealing grease, such as: the Chinese patent application CN111394160A discloses a high-performance shield tail sealing grease which comprises the following components in parts by weight: 20-30 parts of vegetable oil, 15-23 parts of ethylene propylene rubber, 3-6 parts of reinforcing fiber, 0.5-1.5 parts of dispersing agent, 1-2 parts of bentonite, 5-10 parts of light calcium carbonate, 2-5 parts of boron nitride nanosheet/montmorillonite intercalated composite material and 1-5 parts of hollow mesoporous titanium dioxide. The shield tail sealing grease prepared by the technology has good water resistance and high temperature resistance, excellent sealing performance and good pumping performance, but the biodegradation rate of the shield tail sealing grease prepared by the technology is always lower than 95%.
Disclosure of Invention
The invention aims to provide a preparation method of biodegradable water-resistant shield tail sealing grease, which overcomes the defects of the prior art, and is characterized in that radish seed extract and buckeye seed extract are added into base grease forming lubricating grease to improve the water resistance and the biodegradability of the lubricating grease, and solid additives with different granularities are added into lubricating grease to ensure that the solid additives are uniformly dispersed in the lubricating grease like thickening agents, so that the water resistance and the sealing performance of the lubricating grease are enhanced.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a biodegradable water-resistant shield tail sealing grease is mainly composed of the following raw materials in parts by weight: 100-150 parts of lubricating grease, 5-45 parts of solid additive, 1-5 parts of antioxidant, 2-8 parts of antirust agent, 0.5-2 parts of oiliness agent, 2-5 parts of structure stabilizer and 1-3 parts of multi-effect additive.
Preferably, the material mainly comprises the following raw materials in parts by weight: 125 parts of lubricating grease, 28 parts of solid additive, 3 parts of antioxidant, 6 parts of antirust agent, 1.75 parts of oiliness agent, 4 parts of structure stabilizer and 2 parts of multi-effect additive.
Preferably, the lubricating grease mainly comprises base grease, radish seed extract and buckeye seed extract according to the weight ratio of (5-7): (3-2): (1-2), wherein the base grease is one or more of calcium grease, composite calcium grease, sodium grease, lithium grease, composite lithium grease, aluminum grease, composite aluminum grease, titanium grease, composite titanium grease, polyurea grease and composite polyurea grease.
Preferably, the solid additive is one or more of asbestos powder, calcium carbonate, plant fiber and composite fiber.
Preferably, the solid additive has a particle size ranging from 0.5 to 50 μm.
Preferably, the solid additives with the particle size of 0.5-10 μm in the solid additives account for 5-25% of the total weight of the solid additives, the solid additives with the particle size of 10-20 μm account for 20-50% of the total weight of the solid additives, the solid additives with the particle size of 20-40 μm account for 10-40% of the total weight of the solid additives, and the solid additives with the particle size of 40-50 μm account for 10-40% of the total weight of the solid additives.
Preferably, the antioxidant is prepared from 2, 6-di-tert-butyl-p-cresol, an alkylated group-alpha-naphthylamine and rosemary in a weight ratio of (1-3): 5: 1 is prepared by compounding.
Preferably, the antirust agent adopts one or a mixture of two of medium-base-number synthetic calcium sulfonate (T105) and high-base-number synthetic calcium sulfonate (T106).
Preferably, the oily agent is a long-chain organic acid type oily agent.
Preferably, the structure stabilizer is one or more of diphenyl dihydroxy silane, hydroxy silicone oil and hexamethyl disilazane, and the multi-effect additive is dialkyl dithiocarbamate.
A preparation method of biodegradable water-resistant shield tail sealing grease comprises the following preparation steps:
(1) preparing a radish seed extract: putting dried radish seed powder with the particle size of 150-; concentrating the filtrate, removing ethanol in the extract, and centrifuging to obtain concentrated solution; passing the centrifuged concentrated solution through chromatographic column, eluting with 2-6 times of 10-20 wt% ethanol or water, eluting with 2-6 times of 30-50 wt% ethanol, and collecting the eluate; concentrating the obtained eluate, removing ethanol from the concentrated solution, centrifuging the obtained concentrated solution, and drying with vacuum freeze dryer;
(2) preparing an buckeye seed extract: crushing buckeye seeds, sieving, performing ultrasonic extraction for 80-90min by using ethanol with the volume fraction of 85-95% according to the material-liquid ratio of 1:15-1:20, and concentrating the extracting solution to obtain an extract;
(3) weighing basic grease, adding radish seed extract, buckeye seed extract, antioxidant, antirust agent, oiliness agent, structure stabilizer and multi-effect additive, stirring at the speed of 180-;
(4) adding a solid additive with the particle size of 40-50 mu m into the lubricating paste mixture, stirring while adding at the stirring speed of 120-150r/min, stirring for 20-40min, then adding the solid additive with the particle size of 20-40 mu m, stirring while adding at the stirring speed of 80-120r/min, stirring for 30-40min, then adding the solid additive with the particle size of 10-20 mu m, stirring while adding at the stirring speed of 60-80r/min, stirring for 30-40min, then adding the solid additive with the particle size of 0.5-10 mu m, stirring while adding at the stirring speed of 40-60r/min, and stirring for 40-50 min.
The invention has the beneficial effects that: compared with the prior art, the preparation method of the biodegradable water-resistant shield tail sealing grease has the following advantages: (1) according to the lubricating grease disclosed by the invention, the radish seed extract and the buckeye extract are taken as main materials, the conventional basic grease is taken as an auxiliary material, the radish seed is extracted by the extraction process disclosed by the invention, and the erucic acid, linoleic acid, linolenic acid and erucic acid glyceride contained in the radish seed extract can effectively improve the degradation effect of the basic oil, and the addition of the buckeye extract can play a role in thickening and improve the waterproof effect of the lubricating grease; (2) the solid additives with different particle size distributions are added into the lubricating grease, and the solid additives are adhered to the radish seed extract and the semen aesculi extract, so that the solid additives are uniformly dispersed among the basic grease like thickening agents, and the sealing property and the water resistance of the lubricating grease are enhanced.
Detailed Description
Example 1
A biodegradable water-resistant shield tail sealing grease is mainly composed of the following raw materials in parts by weight: 125 parts of lubricating grease, 28 parts of solid additive, 3 parts of antioxidant, 6 parts of antirust agent, 1.75 parts of oiliness agent, 4 parts of structure stabilizer and 2 parts of multi-effect additive.
The lubricating grease is prepared from basic grease, a radish seed extract and a buckeye extract according to the weight ratio of 6: 2: 1, wherein the basic grease is composite aluminum-based grease; the solid additive is asbestos powder and plant fiber; the particle size range of the solid additive is 0.5-50 μm, wherein the solid additive with the particle size of 0.5-10 μm accounts for 15% of the total weight of the solid additive, the solid additive with the particle size of 10-20 μm accounts for 35% of the total weight of the solid additive, the solid additive with the particle size of 20-40 μm accounts for 25% of the total weight of the solid additive, and the solid additive with the particle size of 40-50 μm accounts for 25% of the total weight of the solid additive.
The antioxidant is prepared from 2, 6-di-tert-butyl-p-cresol, alkylated-alpha-naphthylamine and rosemary according to the weight ratio of 2: 5: 1 is prepared by compounding. The rust inhibitor adopts medium-base-number synthetic calcium sulfonate (T105). The oiliness agent is a long-chain organic acid oiliness agent. The structure stabilizer adopts diphenyl dihydroxy silane. The multi-effect additive is a dialkyl dithiocarbamate.
A preparation method of biodegradable water-resistant shield tail sealing grease comprises the following preparation steps:
(1) preparing a radish seed extract: putting dried radish seed powder with the particle size of 200 mu m and 85 wt% of ethanol solution into a cavity of ultrasonic-microwave synergistic extraction equipment for extraction, wherein the mass of the ethanol solution is 7 times of that of the radish seed powder, extracting for 3 times, cooling after extraction is finished, filtering the extracting solution by using a 180-mesh screen to obtain filtrate, and combining the filtrate; concentrating the filtrate, removing ethanol in the extract, and centrifuging to obtain concentrated solution; passing the centrifuged concentrated solution through a chromatographic column, eluting with 4 times of column volume of 15 wt% ethanol or water to remove impurities, eluting with 4 times of column volume of 40 wt% ethanol, and collecting the eluate; concentrating the obtained eluate, removing ethanol from the concentrated solution, centrifuging the obtained concentrated solution, and drying with vacuum freeze dryer;
(2) preparing an buckeye seed extract: crushing and sieving Chinese buckeye seeds, ultrasonically extracting for 85min by using 90% ethanol according to a material-liquid ratio of 1:18, and concentrating an extracting solution to obtain an extract;
(3) weighing basic grease, adding radish seed extract, semen Aesculi extract, antioxidant, antirust agent, oiliness agent, structure stabilizer and multi-effect additive, stirring at 220r/min for 30min to obtain lubricating grease mixture;
(4) adding solid additive with the particle size of 40-50 mu m into the lubricating paste mixture, stirring while adding at the stirring speed of 135r/min, stirring for 30min, then adding solid additive with the particle size of 20-40 mu m, stirring while adding at the stirring speed of 100r/min, stirring for 35min, then adding solid additive with the particle size of 10-20 mu m, stirring while adding at the stirring speed of 70r/min, stirring for 35min, then adding solid additive with the particle size of 0.5-10 mu m, stirring while adding at the stirring speed of 50r/min, and stirring for 45 min.
Example 2
A biodegradable water-resistant shield tail sealing grease is mainly composed of the following raw materials in parts by weight: 100 parts of lubricating grease, 10 parts of solid additive, 2 parts of antioxidant, 2 parts of antirust agent, 0.5 part of oiliness agent, 2 parts of structure stabilizer and 1 part of multi-effect additive.
The lubricating grease is prepared from basic grease, a radish seed extract and a buckeye extract according to a weight ratio of 5: 3: 1, wherein the basic grease is a composite titanium grease. The solid additive is formed by doping asbestos powder, calcium carbonate and composite fibers. The particle size range of the solid additive is 0.5-50 μm. In the solid additives, the solid additives with the particle size of 0.5-10 mu m account for 10 percent of the total weight of the solid additives, the solid additives with the particle size of 10-20 mu m account for 20 percent of the total weight of the solid additives, the solid additives with the particle size of 20-40 mu m account for 30 percent of the total weight of the solid additives, and the solid additives with the particle size of 40-50 mu m account for 40 percent of the total weight of the solid additives.
The antioxidant is prepared from 2, 6-di-tert-butyl-p-cresol, alkylated-alpha-naphthylamine and rosemary according to the weight ratio of 1: 5: 1 is prepared by compounding. The antirust agent adopts high-base-number synthetic calcium sulfonate (T106). The oiliness agent is a long-chain organic acid oiliness agent. The structure stabilizer adopts hexamethyldisilazane, and the multi-effect additive is dialkyl dithiocarbamate.
A preparation method of biodegradable water-resistant shield tail sealing grease comprises the following preparation steps:
(1) preparing a radish seed extract: putting dried radish seed powder with the particle size of 150 mu m and 80 wt% of ethanol solution into a cavity of ultrasonic-microwave synergistic extraction equipment for extraction, wherein the mass of the ethanol solution is 6 times of that of the radish seed powder, extracting for 2 times, cooling after extraction is finished, filtering the extracting solution by using a 150-mesh screen to obtain filtrate, and combining the filtrate; concentrating the filtrate, removing ethanol in the extract, and centrifuging to obtain concentrated solution; passing the centrifuged concentrated solution through a chromatographic column, eluting impurities with 2 times of 10 wt% ethanol or water, eluting with 2 times of 30 wt% ethanol, and collecting the eluate; concentrating the obtained eluate, removing ethanol from the concentrated solution, centrifuging the obtained concentrated solution, and drying with vacuum freeze dryer;
(2) preparing an buckeye seed extract: crushing buckeye seeds, sieving, ultrasonically extracting for 80min by using ethanol with the volume fraction of 85% according to the material-liquid ratio of 1:15, and concentrating the extracting solution to obtain an extract;
(3) weighing basic grease, adding radish seed extract, semen Aesculi extract, antioxidant, antirust agent, oiliness agent, structure stabilizer and multi-effect additive, stirring at 180r/min for 20min to obtain lubricating grease mixture;
(4) adding solid additive with the particle size of 40-50 mu m into the lubricating paste mixture, stirring while adding at the stirring speed of 120r/min for 20min, then adding solid additive with the particle size of 20-40 mu m, stirring while adding at the stirring speed of 80r/min for 30min, then adding solid additive with the particle size of 10-20 mu m, stirring while adding at the stirring speed of 60r/min for 30min, then adding solid additive with the particle size of 0.5-10 mu m, stirring while adding at the stirring speed of 40r/min, and stirring for 40 min.
Example 3
A biodegradable water-resistant shield tail sealing grease is mainly composed of the following raw materials in parts by weight: 150 parts of lubricating grease, 45 parts of solid additive, 5 parts of antioxidant, 8 parts of antirust agent, 2 parts of oiliness agent, 5 parts of structure stabilizer and 3 parts of multi-effect additive.
The lubricating grease is prepared from basic grease, a radish seed extract and a buckeye extract according to a weight ratio of 7: 2: 2, wherein the basic grease is formed by mixing calcium-based grease and sodium-based grease. The solid additive is formed by mixing calcium carbonate and plant fiber. The particle size range of the solid additive is 0.5-50 μm. In the solid additives, the solid additives with the particle size of 0.5-10 mu m account for 20 percent of the total weight of the solid additives, the solid additives with the particle size of 10-20 mu m account for 40 percent of the total weight of the solid additives, the solid additives with the particle size of 20-40 mu m account for 20 percent of the total weight of the solid additives, and the solid additives with the particle size of 40-50 mu m account for 20 percent of the total weight of the solid additives.
The antioxidant is prepared from 2, 6-di-tert-butyl-p-cresol, alkylated-alpha-naphthylamine and rosemary according to the weight ratio of 3: 5: 1 is prepared by compounding. The antirust agent adopts high-base-number synthetic calcium sulfonate (T106). The oiliness agent is a long-chain organic acid oiliness agent. The structure stabilizer adopts hydroxyl silicone oil, and the multi-effect additive is dialkyl dithiocarbamate.
A preparation method of biodegradable water-resistant shield tail sealing grease comprises the following preparation steps:
(1) preparing a radish seed extract: putting dried radish seed powder with the particle size of 300 mu m and 95 wt% of ethanol solution into a cavity of ultrasonic-microwave synergistic extraction equipment for extraction, wherein the mass of the ethanol solution is 8 times of that of the radish seed powder, extracting for 4 times, cooling after extraction is finished, filtering the extracting solution by using a 200-mesh screen to obtain filtrate, and combining the filtrate; concentrating the filtrate, removing ethanol in the extract, and centrifuging to obtain concentrated solution; passing the centrifuged concentrated solution through a chromatographic column, eluting impurities with 6 times of column volume of 20 wt% ethanol or water, eluting with 6 times of column volume of 50 wt% ethanol, and collecting the eluate; concentrating the obtained eluate, removing ethanol from the concentrated solution, centrifuging the obtained concentrated solution, and drying with vacuum freeze dryer;
(2) preparing an buckeye seed extract: crushing buckeye seeds, sieving, ultrasonically extracting for 90min by using 95% ethanol according to a material-liquid ratio of 1:20, and concentrating an extracting solution to obtain an extract;
(3) weighing basic grease, adding radish seed extract, semen Aesculi extract, antioxidant, antirust agent, oiliness agent, structure stabilizer and multi-effect additive, stirring at 260r/min for 40min to obtain lubricating grease mixture;
(4) adding solid additive with the particle size of 40-50 mu m into the lubricating paste mixture, stirring while adding at the stirring speed of 150r/min for 40min, then adding solid additive with the particle size of 20-40 mu m, stirring while adding at the stirring speed of 120r/min for 40min, then adding solid additive with the particle size of 10-20 mu m, stirring while adding at the stirring speed of 80r/min for 40min, then adding solid additive with the particle size of 0.5-10 mu m, stirring while adding at the stirring speed of 60r/min, and stirring for 50 min.
Comparative example 1
Comparative example 1 is essentially the same as example 1 except that: the lubricating grease mainly comprises basic grease, radish seed extract and buckeye extract according to the weight ratio of 8: 2: 1.
Comparative example 2
Comparative example 2 is substantially the same as example 1 except that: in the solid additives described in comparative example 2, the solid additives having a particle size of 0.5 to 10 μm were 30% by weight, the solid additives having a particle size of 10 to 20 μm were 10% by weight, the solid additives having a particle size of 20 to 40 μm were 30% by weight, and the solid additives having a particle size of 40 to 50 μm were 30% by weight, based on the total weight of the solid additives.
Test example 1
The biodegradable water-resistant tail sealing greases prepared in examples 1 to 3, comparative example 1 and comparative example 2 were subjected to performance tests, and the test results are shown in table 1:
TABLE 1
As can be seen from Table 1, the lubricating grease disclosed by the invention effectively improves the degradation effect of the base oil by adding the radish seed extract and the buckeye extract in a reasonable proportion, and the biodegradation rate is as high as 98.9%. According to the invention, solid additives with different particle size distributions are added into the lubricating grease according to a reasonable proportion, and the solid additives are adhered to the radish seed extract and the semen aesculi extract, so that the solid additives are uniformly dispersed among the basic grease like a thickening agent, and the sealing property and the water resistance of the lubricating grease are enhanced.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. A preparation method of biodegradable water-resistant shield tail sealing grease is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
s1, weighing 150 parts of lubricating grease 100, 5-45 parts of solid additive, 1-5 parts of antioxidant, 2-8 parts of antirust agent, 0.5-2 parts of oiliness agent, 2-5 parts of structure stabilizer and 1-3 parts of multi-effect additive, wherein the lubricating grease mainly comprises base grease, radish seed extract and buckeye seed extract according to the weight ratio (5-7): (3-2): (1-2);
s2, adding a radish seed extract, a semen aesculi extract, an antioxidant, an antirust agent, an oiliness agent, a structure stabilizer and a multi-effect additive into the base grease, stirring at the speed of 180-260r/min for 20-40min to obtain a lubricating grease mixture;
s3, adding a solid additive with the particle size of 40-50 mu m into the lubricating paste mixture, stirring while adding at the stirring speed of 120-150r/min, stirring for 20-40min, then adding the solid additive with the particle size of 20-40 mu m, stirring while adding at the stirring speed of 80-120r/min, stirring for 30-40min, then adding the solid additive with the particle size of 10-20 mu m, stirring while adding at the stirring speed of 60-80r/min, stirring for 30-40min, then adding the solid additive with the particle size of 0.5-10 mu m, stirring while adding at the stirring speed of 40-60r/min, and stirring for 40-50 min.
2. The preparation method of the biodegradable water-resistant shield tail sealing grease as claimed in claim 1, wherein the preparation method comprises the following steps: the preparation method of the radish seed extract comprises the following steps: putting dried radish seed powder with the particle size of 150-; concentrating the filtrate, removing ethanol in the extract, and centrifuging to obtain concentrated solution; passing the centrifuged concentrated solution through chromatographic column, eluting with 2-6 times of 10-20 wt% ethanol or water, eluting with 2-6 times of 30-50 wt% ethanol, and collecting the eluate; concentrating the obtained eluate, removing ethanol from the concentrated solution, centrifuging the obtained concentrated solution, and drying with vacuum freeze dryer.
3. The preparation method of the biodegradable water-resistant shield tail sealing grease as claimed in claim 1, wherein the preparation method comprises the following steps: the preparation method of the buckeye seed extract comprises the following steps: crushing buckeye seeds, sieving, performing ultrasonic extraction for 80-90min by using ethanol with the volume fraction of 85-95% according to the material-liquid ratio of 1:15-1:20, and concentrating the extracting solution to obtain an extract.
4. The preparation method of the biodegradable water-resistant shield tail sealing grease as claimed in claim 1, wherein the preparation method comprises the following steps: the basic grease is one or more of calcium grease, composite calcium grease, sodium grease, lithium grease, composite lithium grease, aluminum grease, composite aluminum grease, titanium grease, composite titanium grease, polyurea grease and composite polyurea grease.
5. The preparation method of the biodegradable water-resistant shield tail sealing grease as claimed in claim 1, wherein the preparation method comprises the following steps: the solid additive is one or more of asbestos powder, calcium carbonate, plant fiber and composite fiber; the particle size range of the solid additive is 0.5-50 mu m; in the solid additives, the solid additives with the particle size of 0.5-10 mu m account for 5-25% of the total weight of the solid additives, the solid additives with the particle size of 10-20 mu m account for 20-50% of the total weight of the solid additives, the solid additives with the particle size of 20-40 mu m account for 10-40% of the total weight of the solid additives, and the solid additives with the particle size of 40-50 mu m account for 10-40% of the total weight of the solid additives.
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| JPH04337388A (en) * | 1991-05-15 | 1992-11-25 | Miyoshi Oil & Fat Co Ltd | Metal working oil |
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